They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: � Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; � The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; � The speed and extent of an economic recovery, including the recovery of the housing market; � The amount and timing of repurchases, if any, of PolyOne common shares and our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; � The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks; Changes in polymer consumption growth rates in the markets where we conduct business; Forward Looking Statements � Changes in polymer consumption growth rates in the markets where we conduct business; � Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; � Fluctuations in raw material prices, quality and supply and in energy prices and supply; � Production outages or material costs associated with scheduled or unscheduled maintenance programs; � Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; � An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services; � The ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies, and retain relationships with customers of acquired companies, including without limitation, Color Matrix Group, Inc. Page 3 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

Review and approve the terms of all employment agreements, management continuity agreements and change in control agreements for elected officers. 3 Non-employee Director Compensation The Company’s Chief Human Resources Officer will be the management liaison to the Committee with respect to matters concerning compensation and benefits The Committee may invite such members of management to its meetings as it deems appropriate.

The Input Stream Management confirms that bluesign® approved chemical products and raw materials are used in all steps of the manufacturing process.  The Input Stream Management ensures that bluesign® approved chemical products and raw materials are used in all steps of the manufacturing process. Media contact Jennifer Huang  Senior Manager, Marketing Communications Asia  Avient Corporation   +86 21 60284888  jennifer.huang@avient.com

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. U S E O F N O N - G A A P M E A S U R E S PolyOne Corporation 3 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude.

The most common use—coatings and plastics—accounts for more than 80 percent of global consumption. RISK MANAGEMENT RECOMMENDATION Risk management measures for industrial site use include containment through engineering controls and personal protective equipment.

PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Patterson President and Chief Executive Officer Kurt Schuering Vice President, Global Key Account Management Bradley C Richardson Executive Vice President and Chief Financial Officer Cathy K. Garratt Senior Vice President, President of Performance Products and Solutions Walter Ripple General Manager of GLS Julie A.

Attending and Voting at the Annual Meeting PROXY SUMMARY Company Operating Performance Our Company Culture PROXY SUMMARY Impact of Our Performance on Named Executive Officer 2018 Compensation Annual Incentive Plan 2018 Annual Incentive Program Payouts Named Executive Officer 2018 Target Opportunity ($) Payout (%) Payout ($) Long-Term Incentive Program 2016 – 2018 Cash-Settled Performance Units Performance Measure: Adjusted EPS Performance Periods Weighting Target Result Payout % PROXY SUMMARY Our Director Nominees and Committee Membership Name Age Director Since Principal Position Notable Skills and Experiences Independent Committee Membership* (M=Member, C=Chair) AC CC N&GC EH&SC PROXY SUMMARY Name Age Director Since Principal Position Notable Skills and Experiences Independent Committee Membership* (M=Member, C=Chair) AC CC N&GC EH&SC Average Tenure Average Age Gender Diversity 5.25 59 30% Governance Highlights Director Independence Independent Lead Director PROXY SUMMARY Board Oversight of Risk Management Stock Ownership Requirements Board Practices PROXY STATEMENT POLYONE CORPORATION PolyOne Center 33587 Walker Road Avon Lake, Ohio 44012 PROXY STATEMENT Dated 2019年3月28日 ELECTION OF BOARD OF DIRECTORS PROPOSAL 1 — ELECTION OF BOARD OF DIRECTORS Our Board recommends a vote FOR all the nominees listed below. AUDIT PROPOSAL 3 — RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Our Board recommends a vote FOR Proposal 3 to ratify the Audit Committee’s appointment of EY as our independent registered public accounting firm for 2019. Accounting Considerations Stock Ownership and Retention Guidelines COMPENSATION DISCUSSION AND ANALYSIS Stock Ownership Target (in shares) Total Share Ownership as of 2/28/19 Timing with Respect to Equity Award Grants.

Review and approve the terms of all employment agreements, management continuity agreements and change in control agreements for elected officers. The Company’s Chief Human Resources Officer will be the management liaison to the Committee with respect to matters concerning compensation and benefits The Committee may invite such members of management to its meetings as it deems appropriate.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. U S E O F N O N - G A A P M E A S U R E S PolyOne Corporation 3 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. U S E O F N O N - G A A P M E A S U R E S PolyOne Corporation 3 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude.